Zobrazeno 1 - 10
of 68
pro vyhledávání: '"and Erkki Paatero"'
Publikováno v:
Chemical Engineering and Processing: Process Intensification. 73:119-128
A laboratory flow reactor (Vr = 9.5 mL) with a high shear mixer was used to study the intensification of extraction and stripping. The stirring rate was 15,000 rpm and the reactor space-time was varied from 1.3 to 13 s in extraction experiments. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e87b202853873f00d839ce01298c7154
https://doi.org/10.1016/j.cep.2013.08.005
https://doi.org/10.1016/j.cep.2013.08.005
Publikováno v:
Separation and Purification Technology. 104:193-199
Growing demand of germanium and uncertainties in supply create a need for research into efficient separation methods. Ion exchange recovery of germanium from sulfate solutions was studied with equilibrium experiments, column experiments, and modeling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0f06ad4b8f63fa4098436af06a73841
https://doi.org/10.1016/j.seppur.2012.11.023
https://doi.org/10.1016/j.seppur.2012.11.023
Autor:
Jouni Pakarinen, Erkki Paatero
Publikováno v:
Minerals Engineering. 24:1421-1429
Worldwide consumption of manganese is increasing, nevertheless huge amounts of manganese from hydrometallurgical processes still end up as waste since the recovery of manganese from multi-metal solutions at low concentrations is not considered feasib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25501bad5da93079a635270121b6a21c
https://doi.org/10.1016/j.mineng.2011.06.004
https://doi.org/10.1016/j.mineng.2011.06.004
Autor:
Erkki Paatero, Jouni Pakarinen
Publikováno v:
Hydrometallurgy. 106:159-164
The effect of temperature on manganese recovery by solvent extraction was studied for the production of high purity MnSO 4 from hydrometallurgical tailings solutions. Two commercially available organophosphorus cation exchange reagents, di-(2-ethylhe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d0295804bd6a8c4ce7f75d034f6084d
https://doi.org/10.1016/j.hydromet.2011.01.003
https://doi.org/10.1016/j.hydromet.2011.01.003
Autor:
Katri Laatikainen, Markku Laatikainen, Erkki Paatero, Risto Harjula, Risto Koivula, Jouni Pakarinen
Publikováno v:
Separation and Purification Technology. 75:377-384
Manganese oxide micro-crystals were bound onto silica to prepare a composite material with a particle size large enough to be used in a flow-through fixed bed for metal uptake from hydrometallurgical solutions. Commercial β-MnO 2 was used for screen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6138d7408807f06042477763892ebaf1
https://doi.org/10.1016/j.seppur.2010.09.007
https://doi.org/10.1016/j.seppur.2010.09.007
Publikováno v:
Hydrometallurgy. 104:14-19
Use of the chelating adsorbent CuWRAM® in the copper removal step of hydrometallurgical zinc process has been studied. This adsorbent contains 2-(aminomethyl)pyridine groups anchored on a polyamine–silica composite and it binds copper and other tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9861c73007a695909ff6ab133f62bda
https://doi.org/10.1016/j.hydromet.2010.04.005
https://doi.org/10.1016/j.hydromet.2010.04.005
Publikováno v:
Reactive and Functional Polymers. 70:48-55
The effect of temperature on acid and metals binding was studied using a commercial chelating adsorbent CuWRAM® (by Purity Systems Inc., USA) which contains 2-(aminomethyl)pyridine (AMP) ligands on a polyamine–silica composite. The binding equilib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c7b85630892c33b22af85aa801a546e
https://doi.org/10.1016/j.reactfunctpolym.2009.10.003
https://doi.org/10.1016/j.reactfunctpolym.2009.10.003
Publikováno v:
Reactive and Functional Polymers. 70:56-62
The effect of temperature has been studied on metal-binding rates and dynamic column separation behavior of an adsorbent containing 2-(aminomethyl)pyridine groups supported on silica–polyamine composite. Binding kinetics of H 2 SO 4 as well as copp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4dde120fce9234a04002fb62654101b
https://doi.org/10.1016/j.reactfunctpolym.2009.10.005
https://doi.org/10.1016/j.reactfunctpolym.2009.10.005
Publikováno v:
Separation and Purification Technology. 70:53-57
Cryptomelane-type manganese dioxide was synthesized in order to use it as ion exchange material for the removal of heavy metals from wastewaters. The synthesis was carried out using hydrometallurgical wastewater simulant that is very typical for mini
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10eacb55fe32339bb01536a8f5bdb71b
https://doi.org/10.1016/j.seppur.2009.08.014
https://doi.org/10.1016/j.seppur.2009.08.014
Autor:
Risto Koivula, Markku Laatikainen, Jouni Pakarinen, Katri Sirola, Erkki Paatero, Risto Harjula
Publikováno v:
University of Helsinki
The properties of nanoporous manganese oxides for metal uptake from hydrometallurgical solutions were studied. Layer-structured OL-1 and tunnel-structured OMS-1 were synthesized by means of a hydrothermal route and then supported on silica. Competiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2be13ebb727459854f7bf320115aabc7
https://doi.org/10.1080/01496390903183329
https://doi.org/10.1080/01496390903183329